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1 result(s) for Un-shelving

• OPC-10000-9 – OPC Unified Architecture - Part 9: Alarms & Conditions
  5.8.17.1 Overview
  specifies that an Alarm be shelved for a fixed time period. This type of Shelving is quite often used to block nuisance Alarms . For example, an Alarm that occurs more ... Unshelve can be called to cause a transition to the Unshelve state; this includes Un-shelving an Alarm that is in the TimedShelve state before the time has expired